LWG3004 [string.capacity] and [vector.capacity] should specify time complexity for capacity()

Author: Dawn Perchik

source/containers.tex

@@ -5372,6 +5372,9 @@
 \returns
 The total number of elements that the vector can hold
 without requiring reallocation.
+
+\pnum
+\complexity Constant time.
 \end{itemdescr}
 
 \indexlibrary{\idxcode{reserve}!\idxcode{vector}}%

source/strings.tex

@@ -1688,6 +1688,9 @@
 \pnum
 \returns
 The size of the allocated storage in the string.
+
+\pnum
+\complexity Constant time.
 \end{itemdescr}
 
 \indexlibrarymember{reserve}{basic_string}%